Look at the note and then use suitable classifying expressions to complete these sentences.

Date: 2015-10-07; view: 666.

Decide whether these sentences are true or false. Correct the false ones.

1. A mainframe computer is less powerful than a PC.

2. A mainframe is used by large organizations that need to process enormous amounts of data.

3. The most suitable computers for home use are desktop PCs.

4. A laptop is not portable.

5. Laptops are not as powerful as desktop PCs.

6. Using a stylus, you can write directly onto the screen of a tablet PC.

7. A Personal Digital Assistant is small enough to fit into the palm of your hand.

8. A PDA does not allow you to surf the Web.

Complete the sentences:

1. A computer _________ hardware and software.

2. Peripherals _________ three types: input, output and storage devices.

3. A word processing program ________ software which lets the user create and edit text.

4. _________ of network architecture: peer-to-peer, where all computers have the same capabilities, and client-server (e.g. the Internet), where servers store and distribute data, and clients access this data.